Chuckle ehad - don't you have governemnt rules to fly to? What are the national requirements for your type of a/c to fly into and out of public sites?
Geoffers has said everything I want to say on this.
IF you are making this up as you go along because there are no national limits then God help you when you stoof. What does your insurance company think of your profiles old boy. It won't pay out if you don't comply?
